Answer:
x = -8
Step-by-step explanation:
57 = -8x - 7
+7 +7
64 = -8x
64/-8
Check:
57 = -8(-8) - 7
57 = 64 - 7
57 = 57
Add 7 to both sides:
Divide both sides by -8:
X = 64/-8
X = -8
